Michael Leisner, a 65-year-old real estate agent who become the butt of many Internet jokes after he nearly set himself on fire during a poorly thought-out protest against General Mills' "pro-gay agenda," passed away Saturday near his home in Andover, Minnesota. He was 65.

While Leisner's cause of death has not been officially released, The Star Tribunereports that he passed away "while waiting in his car for his sons to finish playing tennis." He is survived by his wife and four children.